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| CD Round Bars |
About our Products  Products CD Round Bars |
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CD bars are a high-quality product that is the product of numerous manufacturing processes. First the raw materials of hot-rolled wire rods and round bars undergo a cold drawing process. This is followed by their being cut at fixed intervals, followed by their undergoing a process of correction that takes into consideration the desired surface toughness, dimensional accuracy, and straightness. |
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 Classification by measurements |
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SHAPE |
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TYPE |
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GRADE |
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SIZE(mm) |
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LENGTH(mm) |
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| Round |
COIL TO BAR |
SS400, S45C |
6~25 |
4000~6000 |
| BAR TO BAR |
SS400, S45C |
28~100 |
5800~6700 |
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| Manufacturing Process |
WIRE ROD (COIL)
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ROUND BAR (black round bar)
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Preliminary braces
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SHOT BLAST
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SHOT BLAST
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DRAW BENCH
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COIL DRAWING MACHINE
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CUTTING
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2-ROLL STRAIGHTENING
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2-ROLL STRAIGHTENING
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INSPECTION
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INSPECTION
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PACKING
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PACKING
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| CD-BAR |
DB-BAR |
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| Possessed Equipment and Facilities |
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Type |
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AISI (SAE) |
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Number |
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Maker |
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| CDM 1B |
6~12 |
2 |
MIYAZAKI/JAPAN |
| CDM 2B |
12~26 |
3 |
MIYAZAKI/JAPAN |
| DRAW BENCH |
25~80 |
1 |
domestic manufacturer |
| 40~100 |
1 |
domestic manufacturer |
| POLISHING |
6~12 |
2 |
MIYAZAKI/JAPAN |
| 2-ROLL STRAIGHTENER MACHINE |
6~12 |
1 |
E.J.P/GERMANY |
| 10~26 |
3 |
E.J.P/GERMANY |
| 25~50 |
1 |
E.J.P/GERMANY |
| 9-ROLL STRAIGHTENER MACHINE |
30~100 |
1 |
KIESERLING/GERMANY |
| Double-edge saw |
30~100 |
1 |
KIESERLING/GERMANY |
| 20~100 |
1 |
WRENCH SET |
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| Classification by grade of diameter tolerance |
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Type |
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Grade 8(H8) |
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Grade 9(H9) |
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Grade 10(H10) |
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Grade 11(H11) |
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| ~3 and below |
0, -0.014 |
0, -0.025 |
0, -0.040 |
0, -0.060 |
| 3 through 6 |
0, -0.018 |
0, -0.030 |
0, -0.048 |
0, -0.075 |
| 6 through 10 |
0, -0.022 |
0, -0.036 |
0, -0.058 |
0, -0.090 |
| 10 through 18 |
0, -0.027 |
0, -0.042 |
0, -0.070 |
0, -0.110 |
| 18 through 30 |
0, -0.033 |
0, -0.052 |
0, -0.084 |
0, -0.130 |
| 30 through 50 |
0, -0.039 |
0, -0.062 |
0, -0.100 |
0, -0.160 |
| 50 through 80 |
0, -0.046 |
0, -0.074 |
0, -0.120 |
0, -0.190 |
| 80 through 120 |
0, -0.054 |
0, -0.087 |
0, -0.140 |
0, -0.220 |
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